merge revision(s) ab3cb29bd9bff9c16cfb9d19cc02026998282c12:

	Avoid defining the same test class in multiple files

	Should fix issues with parallel testing sometimes not running all
	tests.

	This should be viewed skipping whitespace changes.

	Fixes [Bug #18731]
	---
	 test/-ext-/bignum/test_big2str.rb        |  38 +-
	 test/-ext-/bignum/test_bigzero.rb        |  20 +-
	 test/-ext-/bignum/test_div.rb            |  38 +-
	 test/-ext-/bignum/test_mul.rb            | 260 ++++++------
	 test/-ext-/bignum/test_pack.rb           | 653 +++++++++++++++----------------
	 test/-ext-/bignum/test_str2big.rb        |  52 ++-
	 test/-ext-/funcall/test_funcall.rb       |  11 -
	 test/-ext-/funcall/test_passing_block.rb |   5 +
	 test/date/test_date_ractor.rb            |   2 +-
	 test/fileutils/clobber.rb                |   5 +-
	 test/fileutils/test_dryrun.rb            |   2 +-
	 test/fileutils/test_nowrite.rb           |   2 +-
	 test/fileutils/test_verbose.rb           |   2 +-
	 test/fileutils/visibility_tests.rb       |   5 +-
	 test/mkmf/base.rb                        | 225 ++++++-----
	 test/mkmf/test_config.rb                 |  16 +-
	 test/mkmf/test_constant.rb               |  56 ++-
	 test/mkmf/test_convertible.rb            |  48 ++-
	 test/mkmf/test_egrep_cpp.rb              |  14 +-
	 test/mkmf/test_find_executable.rb        |  82 ++--
	 test/mkmf/test_flags.rb                  |  92 +++--
	 test/mkmf/test_framework.rb              |  70 ++--
	 test/mkmf/test_have_func.rb              |  18 +-
	 test/mkmf/test_have_library.rb           |  84 ++--
	 test/mkmf/test_have_macro.rb             |  46 ++-
	 test/mkmf/test_install.rb                |  38 +-
	 test/mkmf/test_libs.rb                   | 156 ++++----
	 test/mkmf/test_mkmf.rb                   |  14 +-
	 test/mkmf/test_pkg_config.rb             |  98 +++--
	 test/mkmf/test_signedness.rb             |  38 +-
	 test/mkmf/test_sizeof.rb                 |  74 ++--
	 test/optparse/test_acceptable.rb         |   2 +-
	 test/optparse/test_autoconf.rb           |   4 +-
	 test/optparse/test_bash_completion.rb    |   4 +-
	 test/optparse/test_cclass.rb             |   2 +-
	 test/optparse/test_did_you_mean.rb       |   2 +-
	 test/optparse/test_getopts.rb            |   4 +-
	 test/optparse/test_kwargs.rb             |   4 +-
	 test/optparse/test_noarg.rb              |   6 +-
	 test/optparse/test_optarg.rb             |   2 +-
	 test/optparse/test_placearg.rb           |   2 +-
	 test/optparse/test_reqarg.rb             |  10 +-
	 test/optparse/test_summary.rb            |   2 +-
	 test/optparse/test_zsh_completion.rb     |   4 +-
	 test/ruby/enc/test_emoji_breaks.rb       | 207 +++++-----
	 test/ruby/enc/test_grapheme_breaks.rb    | 115 +++---
	 test/ruby/test_inlinecache.rb            |   2 +-
	 47 files changed, 1280 insertions(+), 1356 deletions(-)
	 delete mode 100644 test/-ext-/funcall/test_funcall.rb

13 files changed, 19 insertions, 29 deletions

diff --git a/test/optparse/test_acceptable.rb b/test/optparse/test_acceptable.rb
index 12f7886538..12f5322726 100644
--- a/test/optparse/test_acceptable.rb
+++ b/test/optparse/test_acceptable.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 require_relative 'test_optparse'
 
-class TestOptionParser::Acceptable < TestOptionParser
+class TestOptionParserAcceptable < TestOptionParser
 
   def setup
     super
diff --git a/test/optparse/test_autoconf.rb b/test/optparse/test_autoconf.rb
index 45f2ba09b2..ec87744633 100644
--- a/test/optparse/test_autoconf.rb
+++ b/test/optparse/test_autoconf.rb
@@ -2,9 +2,7 @@
 require 'test/unit'
 require 'optparse/ac'
 
-class TestOptionParser < Test::Unit::TestCase; end
-
-class TestOptionParser::AutoConf < Test::Unit::TestCase
+class TestOptionParserAutoConf < Test::Unit::TestCase
   def setup
     @opt = OptionParser::AC.new
     @foo = @bar = self.class
diff --git a/test/optparse/test_bash_completion.rb b/test/optparse/test_bash_completion.rb
index 513e986f66..60c82f7136 100644
--- a/test/optparse/test_bash_completion.rb
+++ b/test/optparse/test_bash_completion.rb
@@ -2,9 +2,7 @@
 require 'test/unit'
 require 'optparse'
 
-class TestOptionParser < Test::Unit::TestCase
-end
-class TestOptionParser::BashCompletion < Test::Unit::TestCase
+class TestOptionParserBashCompletion < Test::Unit::TestCase
   def setup
     @opt = OptionParser.new
     @opt.define("-z", "zzz") {}
diff --git a/test/optparse/test_cclass.rb b/test/optparse/test_cclass.rb
index ac46f46bb2..0ded61f60e 100644
--- a/test/optparse/test_cclass.rb
+++ b/test/optparse/test_cclass.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 require_relative 'test_optparse'
 
-class TestOptionParser::CClass < TestOptionParser
+class TestOptionParserCClass < TestOptionParser
   def test_no_argument
     flags = []
     @opt.def_option("-[a-z]") {|x| flags << x}
diff --git a/test/optparse/test_did_you_mean.rb b/test/optparse/test_did_you_mean.rb
index a9ad051f03..d1514b73eb 100644
--- a/test/optparse/test_did_you_mean.rb
+++ b/test/optparse/test_did_you_mean.rb
@@ -6,7 +6,7 @@ rescue LoadError
   return
 end
 
-class TestOptionParser::DidYouMean < TestOptionParser
+class TestOptionParserDidYouMean < TestOptionParser
   def setup
     super
     @opt.def_option("--foo", Integer) { |v| @foo = v }
diff --git a/test/optparse/test_getopts.rb b/test/optparse/test_getopts.rb
index 3711e6f269..7d9160f7af 100644
--- a/test/optparse/test_getopts.rb
+++ b/test/optparse/test_getopts.rb
@@ -2,9 +2,7 @@
 require 'test/unit'
 require 'optparse'
 
-class TestOptionParser < Test::Unit::TestCase
-end
-class TestOptionParser::Getopts < Test::Unit::TestCase
+class TestOptionParserGetopts < Test::Unit::TestCase
   def setup
     @opt = OptionParser.new
   end
diff --git a/test/optparse/test_kwargs.rb b/test/optparse/test_kwargs.rb
index 78d7e2ee9c..2e826bfd12 100644
--- a/test/optparse/test_kwargs.rb
+++ b/test/optparse/test_kwargs.rb
@@ -3,9 +3,7 @@ require 'test/unit'
 require 'optparse'
 require 'optparse/kwargs'
 
-class TestOptionParser < Test::Unit::TestCase
-end
-class TestOptionParser::KwArg < Test::Unit::TestCase
+class TestOptionParserKwArg < Test::Unit::TestCase
   class K
     def initialize(host:, port: 8080)
       @host = host
diff --git a/test/optparse/test_noarg.rb b/test/optparse/test_noarg.rb
index 8f20519408..a53399afc2 100644
--- a/test/optparse/test_noarg.rb
+++ b/test/optparse/test_noarg.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 require_relative 'test_optparse'
 
-module TestOptionParser::NoArg
+module TestOptionParserNoArg
   def setup
     super
     @opt.def_option "--with_underscore" do |x| @flag = x end
@@ -9,7 +9,7 @@ module TestOptionParser::NoArg
   end
 
   class Def1 < TestOptionParser
-    include NoArg
+    include TestOptionParserNoArg
     def setup
       super
       @opt.def_option("-x") {|x| @flag = x}
@@ -17,7 +17,7 @@ module TestOptionParser::NoArg
     end
   end
   class Def2 < TestOptionParser
-    include NoArg
+    include TestOptionParserNoArg
     def setup
       super
       @opt.def_option("-x", "--option") {|x| @flag = x}
diff --git a/test/optparse/test_optarg.rb b/test/optparse/test_optarg.rb
index 14584f7e89..81127a8a37 100644
--- a/test/optparse/test_optarg.rb
+++ b/test/optparse/test_optarg.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 require_relative 'test_optparse'
 
-class TestOptionParser::OptArg < TestOptionParser
+class TestOptionParserOptArg < TestOptionParser
   def setup
     super
     @opt.def_option("-x[VAL]") {|x| @flag = x}
diff --git a/test/optparse/test_placearg.rb b/test/optparse/test_placearg.rb
index 8acfdb2161..94cfb0e819 100644
--- a/test/optparse/test_placearg.rb
+++ b/test/optparse/test_placearg.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 require_relative 'test_optparse'
 
-class TestOptionParser::PlaceArg < TestOptionParser
+class TestOptionParserPlaceArg < TestOptionParser
   def setup
     super
     @opt.def_option("-x [VAL]") {|x| @flag = x}
diff --git a/test/optparse/test_reqarg.rb b/test/optparse/test_reqarg.rb
index b2e4755f80..d5686d13aa 100644
--- a/test/optparse/test_reqarg.rb
+++ b/test/optparse/test_reqarg.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 require_relative 'test_optparse'
 
-module TestOptionParser::ReqArg
+module TestOptionParserReqArg
   def setup
     super
     @opt.def_option "--with_underscore=VAL" do |x| @flag = x end
@@ -9,7 +9,7 @@ module TestOptionParser::ReqArg
   end
 
   class Def1 < TestOptionParser
-    include ReqArg
+    include TestOptionParserReqArg
     def setup
       super
       @opt.def_option("-xVAL") {|x| @flag = x}
@@ -19,21 +19,21 @@ module TestOptionParser::ReqArg
     end
   end
   class Def2 < TestOptionParser
-    include ReqArg
+    include TestOptionParserReqArg
     def setup
       super
       @opt.def_option("-x", "--option=VAL") {|x| @flag = x}
     end
   end
   class Def3 < TestOptionParser
-    include ReqArg
+    include TestOptionParserReqArg
     def setup
       super
       @opt.def_option("--option=VAL", "-x") {|x| @flag = x}
     end
   end
   class Def4 < TestOptionParser
-    include ReqArg
+    include TestOptionParserReqArg
     def setup
       super
       @opt.def_option("-xVAL", "--option=VAL") {|x| @flag = x}
diff --git a/test/optparse/test_summary.rb b/test/optparse/test_summary.rb
index 67b05672d4..6b36ce3c76 100644
--- a/test/optparse/test_summary.rb
+++ b/test/optparse/test_summary.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 require_relative 'test_optparse'
 
-class TestOptionParser::SummaryTest < TestOptionParser
+class TestOptionParserSummaryTest < TestOptionParser
   def test_short_clash
     r = nil
     o = OptionParser.new do |opts|
diff --git a/test/optparse/test_zsh_completion.rb b/test/optparse/test_zsh_completion.rb
index c548d4af8a..76f0a73f32 100644
--- a/test/optparse/test_zsh_completion.rb
+++ b/test/optparse/test_zsh_completion.rb
@@ -2,9 +2,7 @@
 require 'test/unit'
 require 'optparse'
 
-class TestOptionParser < Test::Unit::TestCase
-end
-class TestOptionParser::ZshCompletion < Test::Unit::TestCase
+class TestOptionParserZshCompletion < Test::Unit::TestCase
   def setup
     @opt = OptionParser.new
     @opt.define("-z", "zzz") {}